Cesspool



CESSPOOL.

APPLICAUON FILED APR. 25, 1921.

Patented Mar. 7, 1922.

raras EDWIEN O. LAWRENCE,

U1? :PORT JEFFERSON STHLTIGN, NEW YORK.

CESSPOL.

ilyitliil.

Application filed .april 25, 1921.

To all 'whom t may conce/1 *a v Be it known that l, lEDwiN 0. Lawnnnon, a citizen of the United States, residing at lort Jefferson Station, in the county ot tint folk, State of New York, have invented certain new and useful Improvements in Cesspools; and I do hereby declare the following to be a full, clear and enact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the sanie.

This invention relates to cesspools and it has for its object to provide an iinproveiil construction in which the seepage to the surroundinov gravel filling will be at successive elevations although the overflow will be lroin a lined elevation.

It is a further object ol the invention to provide a novel arrangement that will positively prevent ingress oi the surrounding medium, through the seepage openings.

Another object oil the invention is to pro vide a particular block or brick, a suitable number of which may be readily assembled to construct a cesspool ci a given diameter' and of any desired height and from one to another of which blocks or bricks, there may be a ready circulation o1 outgoing liquid, both vertically and transversely.

In the drawings:

Figure 1 is a vertical section taken centrally through a cesspool embodying the present invention, the central portion ol.i the structure being broken away to pei-init oil? f illustration on a large scale.

Figure 2 is a section on line 2-2 oit Fig ure l..

Figure 3 is a detail perspective view et o ne of the concrete blocks or bricks.

Referring now to the drawings, there will, be lirst described the brick from which is Ilorined the wall ci' the kcesspool.V The brick includes an inner wall 10 that is a cylindrical. section and is at right angles to the inner and outer upper edges 11 and 12 oi the brick as well as to the inner and outer lower edges 13 and 14C of the brick. The outer face 15 of the brick is the arc of a cone and the curvatures of these two iaces 10 and 15 are concentric. W'hen a succession of these bricks are disposed end to end, they jointly provide a frusto-conical cesspool course, the interior of which is cylindrical, as will be seen from Figure 2 oi the drawings.

Each of the bricks is provided with a series of passages 16 formed vertically through it,

Specification o1 Letters Patent.

Y Patented Mar. V, 1922. Serial No. 1e/1,107.

the endinost passages being bounded at their outer sides by the end walls 1'? and 18 respectively that are flush with the end edges of the inner and outer faces 10 and 15 respectively or' the brick, the passages of the brick being separated one from another by the partitions 19 that extend radially of the brick, these partitions in practice having double the thickness ot' the end walls 17 and 18 respectively. The passages 16 are preferably square at their upper ends but by reason ci' the downward flare of the outer wall, they are elongated at their lower ends radially of the brick.

in constructing the cesspool., and after the proper excavation has been made, an annular course oi' bricks is placed upon-the bottoni oi the excavation and upon this course, is a second course as shown in Figure 1. The lare of the second course is such that the upper portion of the Vouter .tace 15i oi' each brick ot the lower course,` vlies inwardly of the lower edges of the outer iaces or walls 2O ol4l the passages 16 oi the corresponding brick or bricks of the second course. Each or the passages 16 thus has an opening 21 leading from itslower end to the upper `portion ot the outer face 15 of the brick below. in this arrangement, the inner lower edge 13 of each brick rests upon corresponding extents of the upper inner edges 11 of inutually adjacent bricks therebelow, the lower edges oitl the end walls 17 and 18 being disposed directly above the central partitions 19 of the bricks therebelow, so that the bricks of one course, break j oints with thoseof the next course. lVhile the bricks are set with their inner 'ta ces 10 flush, the outer wall ol' each brick not only overhangs the upper portion of the outer lace ol: the brick nent below, but it is j novidcd with a depending flange 22 torni# ing a continuacion of the outer face 15 and within 'which is received the upper end of the brick or bricks next below, in spaced relation to thern. rithese flanges of the bricks, which circuinscribe the `cesspool5 prevent working through the drain openings 21, oi

the gravel 23 that is iilled in between the wall oit the cesspool and the surrounding earth and to which the cesspool drains.

in inlet pipe 24 is brought in horizontally through the lower edge portion of one of the bricks or the top course and an overflow pipe 25 is passed downwardly through registering passages 16 and has a laterally directed elbow 26 that is carried through the inner Wall and horizontal passages intersecting them and outlets from the vertical passages at the levels of the horizontal passages, an overflow extending from the interior of the cesspool upwardly7 through its Wall and communicating at its upper end with a horizontal passage, and an inlet above the overflow.

1i. A cesspool comprising a plurality of superimposed courses, each course having end Walls and partitions parallel therewith, the partitions and end Walls having their upper and lower edges provided with registeringy notches respectively, with resultant vertical and horizontal intersecting passages through the Wall of the cesspool.

In testimony ture.

EDWIN o. LawineNon.d

whereof, I aiix my signa-` 

